# coding:utf8
'''
Created on 2016年4月19日

@author: Administrator
'''
from bs4 import BeautifulSoup
import re
import urlparse


class HtmlParser(object):
    
    
    def _get_new_urls(self, page_url, soup):
        new_urls = set()
        # /view/2223.htm
        links = soup.find_all('a',href=re.compile(r"/view/\d+\.htm"))
        for link in links:
            new_url = link["href"]
            new_full_url = urlparse.urljoin(page_url,new_url)
            new_urls.add(new_full_url)
        return new_urls
    
    def _get_new_data(self, page_url, soup):
        res_data = {}
        
        #url
        res_data['url'] = page_url
        
        #<dd class="lemmaWgt-lemmaTitle-title"><h1>Python</h1>
        title_node = soup.find('dd',class_="lemmaWgt-lemmaTitle-title").find('h1')
        res_data['title'] = title_node.get_text()
        print res_data['title']

        #<div class="lemma-summary" label-module="lemmaSummary">
        summary_node = soup.find('div',class_="lemma-summary")
        res_data['summary'] = summary_node.get_text()
        
        return res_data
    
    
    def parse(self,page_url,html_cont):
        if page_url is None or html_cont is None:
            return
        
        soup = BeautifulSoup(html_cont,'html.parser',from_encoding="utf-8")
        new_urls = self._get_new_urls(page_url,soup)
        new_data = self._get_new_data(page_url,soup)
        return new_urls,new_data
    
    



